Passive Attic Ventilation System

The process starts with warm moist air rising inside your pole barn.
Passive attic ventilation system. Gable vents are a type of louvered vent that can act as an intake or exhaust vent depending on which way the wind is blowing. In order to facilitate this exchange of warm and cool air the general rule of. When spaced evenly across the roof roof turbines can provide passive exhaust on windless days. Our technology excels in every geographic region every climate and every size project.
Roof ventilation is not a new process by any means. More product details close. Help protect your roof system from premature deterioration by installing a properly balanced attic ventilation system consisting of cobra exhaust vent at the ridge and adequate intake ventilation at or near the soffit areas of your roof. While a simple vent is sometimes used to allow for the passive flow of air it s also possible to add a powered attic fan commonly called an attic power ventilator.
Static roof vents also known as roof louvers are designed to fit into the highest peaks of a roof and rely on wind to function. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. Attic power ventilators are mounted to the roof of the home and are connected electronically to a power source and in most cases the home s thermostat. Owens corning recommends a balanced ventilation system based on the u s.
The early to mid 20th century saw the development of this concept. In the case of a lined building with a ceiling air is rising in the building s attic. To understand how proper ventilation works here s the anatomy of a basic passive pole barn ventilation system. Passive roof vents expel excess heat and moisture.
Out with the moist stale air. Big organizations like the forest products laboratory and even the american society of heating refrigerating air conditioning engineers realized that poor roof ventilation systems could cause condensation problems in a. Roof vents enhance the overall comfort of the house by providing escape hatches for hot stale moist air which can reach temperatures of 150 degrees in summer. The key is to balance incoming air with outgoing and perform an annual maintenance checkup.
Roof turbines have blades that spin in the wind pulling air up through the intake vents into the attic and out of the house. Renewaire energy recovery ventilators ervs can be applied everywhere across all commercial educational institutional light industrial and residential buildings. Passive roof vents encourage natural air flow and work without the aid of motorized fans.